There's just a shit ton of money to be made pretending it's 1955. I went into the wrong business.
If you end up a multi billion dollar unicorn with tens of millions in ad budget, targeted direct ads no longer move the needle like they did when you were a startup. Now for the Director of Marketing to justify increasingly larger compensation, he needs to increase his ad spend and starts whispering about spending money on ads that have no direct correlation to the bottom line. This is called brand advertising. Hint: If an early stage startup spends more budget on brand advertising than direct marketing, run.
Effective advertising is matching the product/service with some problem, on a specific channel of eyeballs, with a specific message. There are tons of new channels popping up every few years (think google, facebook, instagram, youtube, twitch, pinterest, wechat, stackexchange, hn, reddit, etc). There are millions of permutations but you have a finite ad budget. The magic is deciding how to show what to who.
Even better, no need to write an essay about your services or products, Google already know everything about it by scraping your website, so just point to the URL, and done
With the tactics being gobbled up by the Red Queen effect, you have to move to strategies to win. The OP writes about a pretty good one.
I think the Parent was actually advocating surgical PPC management of the style patio11 has written about extensively.
Other reason to use it is when you dont want to be screwed by fake clicks, and are 100% sure people will find your product anyways and buy it.
I've been running PPC ads for highly targeted keywords for the last 5 years which have generated a ridiculous return. In general ppc is steady and reliable once you have you're keywords and ads running for a while and are well optimized.
On the other hand, I've recently been trying dropshipping, advertising the product on Facebook.
I did a small test for a unique product, I sourced it from China for around 5 usd and sold them for 25 usd.
People actually bought them on site even though Amazon has them at a much lower price.
Facebook literally knows people who are high spenders / frequent purchasers and will put your ads in front of them. It's actually stupidly powerful.
However, 80% of ads are trash peddled by blind men leading blind men.
There are very specific advertising techniques that work consistently, but most "marketing types" optimize for flashy artistic ads that have literally ZERO selling power.
In fact, in some studies, ads actually REDUCE sales -- by, for example -- accidentally highlighting something that is an unexpected turn off to customers.
But, the problem is, most companies don't trace their ads. And that's why overwhelmingly a lot of advertising money is wasted.
But this state of affairs has been going on since the 60's.
So I wouldn't underestimate the number of gullible humans to keep paying for advertising.
As long as you have eyeballs you'll probably always have an excess of ad spend.